"Cold [Medium/hard]: Wear on Raven. Blizzards will put you down in 3/4 shots. Avoid them. Tele around the sorc, avoid her blizzards/ibs and spam spirits around her. As soon as she has low life and teles away, lock her and finish her."
You completely missed out using minion stack clay golem which gets coldimmune easily with 1 pt in golem mastery / minion resistances - public blizz is ez then, even when they namelock blizz you - it's important to only teleport, never walk/run so your golem stays on top of you all the time.